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2786 Decade Resistance Box
Brand: Yokogawa Electric CorporationModels 278610 and 278620 six-dial decade resistance boxes allow quick and easy setting of a wide range of resistance.
These resistance boxes are used in combination with voltage or current standards to adjust voltage or current, as dummy load resistances or as an arm of AC bridges.
Specifications
Accuracy
- ± 0.05 to ± 2 at 23 ± 3° C Ambient Temperature
Current
- 1.7 mA (100 kΩ) - Rating Current
- 5.5 mA to 2.2 A - Current Rating And, Max.
- 7.1 mA (10 to 30 kΩ) - max.
Humidity
- 25 to 80 % RH
Input
- 0.5 w/ Step - Max.
- 250 V (40 to 100 kΩ) - max.
- 5 W - for Overall Instrument: Max.
Insulation Resistance
- More Than 500 MΩ at 500 Vdc
Operating Temperature
- 0° to 40° C (32° to 104° F)
Power
- 0.3 w/ Step - Rating
- 3 W - for Overall Instrument
Rating
- 250 V (200 kΩ to 1 MΩ) - Rating
Resistance
- < 23 milliohms - Residual Resistance
- 0.1 to 100 kΩ - Step
- 0.1 to 111,111 ohms (Six Decade Dials) - 278610
- 1 to 1,111,110 ohms (Six Decade Dials) - 278620
Storage Temperature
- -10° to 50° C (14° to 122° F)
Supply Voltage
- 1,500 Vac for One Minute - Dielectric Strength
- 250 V - Max.